用蒙特卡罗方法评估裂纹管道的瞬态流动

M. Hassani, O. Bouledroua, M. H. Meliani, L. Sadou, G. Pluvinage
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引用次数: 2

摘要

本工作的目的是评估由于流体瞬变而导致裂纹管道失效的风险。建立了基于质量和动量守恒定律的数学模型,用特征值法和有限差分法求解了双曲型偏微分方程组,计算了管内最大压力。在此基础上,采用有限元方法对某输水管道裂缝进行了可靠性评估分析,采用蒙特卡罗方法和失效评估图(FAD)工具,从确定性和概率角度对裂缝的安全系数进行了评估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of a cracked pipe subject to transient flow by the Monte Carlo method
THE PURPOSE OF THIS WORK is to assess the risk of failure of cracked pipe due to fluid transient. A mathematical model has been established based on the mass and momentum conservation laws, the system of hyperbolic partial differential equations has been solved by the method of characteristics and a finite difference method to calculate the maximum pressure in the pipe. Afterwards, a finite element method have been used to perform a reliable assessment analysis of a cracked pipe used in water distribution by using Monte Carlo method and failure assessment diagram (FAD) tools to evaluate the safety factor from deterministic and probabilistic view points.
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